Round Mandrel Slip Joint

Model: TOP-DST-07
Place of Origin: Shaanxi,China (Mainland)
Application: oil well testing
Type: full bore drill stem testing
working pressure: 10000psi ~ 15000psi
service: H2S
standard: NACE MR0175
Condition: New
Size: 5"
Operate: ANNULAR PRESSURE OPERATED
Special Groups: DST Tools

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Product Description

Payment & Shipping Terms Supply Capacity
Unit Price:500.0~10000.0 USDProduction Capacity:8 pcs/month
Trade Term:FOBPacking:polywood case
Payment Terms:T/TDelivery Date:15~30 days
Min. Order:1 Piece/Pieces
Means of Transport:Ocean

Round mandrel slip joint

The round mandrel slip joint, like other slip joints, accepts the movement associated with ocean heave or temperature change without allowing the movement to disturb the placement of downhole tools.
The round mandrel slip joint has the following characteristics:
• Top of the mandrel slip joint has 4 3/4-in. (120.65-mm) drill collar profile for easy handling with the rig elevators and slips
• Maintains its full tensile rating when collapsed and locked
• Can be locked in the closed position for handling, reducing the risk of damage to the lifting/sealing mandrel
• Internally pressure and volume balanced
• String can be picked up with the slip joint locked; the slip joint can then be unlocked before it is run into the hole
• Provides free travel in the string to reciprocate tools without unseating the packer
A slip joint operates by balancing its volume. As the slip joint stretches and increases its internal volume, a differential piston within the slip joint allows the same volume of fluid into the pipe. The net result is no change in internal volume.
Each slip joint has 5 ft (1.52 m) of travel but can be combined with other slip joints to provide additional travel.
When multiple slip joints are run, they are normally connected to one another rather than located throughout the pipe string. The number of slip joints required depends on ocean heave and the amount of expected contraction and expansion
Round Mandrel Slip Joint
Oil well drill stem testing tools Round mandrel slip joint

Category: Cased hole drill stem testing tools

Related Category: well testing safety valve  Open hole drill stem testing tools  Super Safety valve DST tools  Full Bore Retrievable Packer DST  Circulating valve DST tools 


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